X-Git-Url: http://git.squeep.com/?a=blobdiff_plain;f=vm-dcpu16.c;h=f7f4c156f7e9d2b443c7c64ec507fbb85c9f0c70;hb=49be905f037fbd22b6ae0275efbab2ed95d4d9b7;hp=b8a35327b0721bc75961fa86a3746ac227b7a3e5;hpb=8b552fe61db48874f043bccfb589e5444509444c;p=dcpu16 diff --git a/vm-dcpu16.c b/vm-dcpu16.c index b8a3532..f7f4c15 100644 --- a/vm-dcpu16.c +++ b/vm-dcpu16.c @@ -148,10 +148,57 @@ int file_load_(struct dcpu16 *vm, char *filename, DCPU16_WORD addr) { return 0; } +/* dump_ram_ + * print raw ram contents from start to stop + */ +static +void dump_ram_(struct dcpu16 *vm, DCPU16_WORD start, DCPU16_WORD end) { + unsigned int i, j; + const unsigned int n = 8; /* words per line */ + + if (!vm) return; + + for (i = start, j = 0; i <= end; i++, j++) { + if (j % n == 0) + printf("0x%04x:\t", i); + printf(" %04x%s", vm->ram[i], (j % n) == (n - 1) ? "\n" : ""); + } + if ((j % n) != (n - 1)) + printf("\n"); +} + + +/* + print the current state of the machine + shows current cycle count, registers, and next instruction +*/ +static +void state_print_(struct dcpu16 *vm) { + unsigned int i; + + if (!vm) return; + + printf(" "); + for (i = 0; i < 8; i++) + printf(" %s:0x%04x", dcpu16_reg_names[i], vm->reg[i]); + printf("\n"); + + printf("(0x%08llx) %2s:0x%04x %2s:0x%04x %2s:0x%04x %2s:0x%04x [%2s]:", + vm->cycle_, + dcpu16_reg_names[DCPU16_REG_EX], vm->reg[DCPU16_REG_EX], + dcpu16_reg_names[DCPU16_REG_SP], vm->reg[DCPU16_REG_SP], + dcpu16_reg_names[DCPU16_REG_PC], vm->reg[DCPU16_REG_PC], + dcpu16_reg_names[DCPU16_REG_IA], vm->reg[DCPU16_REG_IA], + "PC"); + + dcpu16_disassemble_print(vm, vm->reg[DCPU16_REG_PC]); + printf("\n"); +} + #ifdef HAVE_LIBVNCSERVER static struct dynamic_array rfbScreens_; -/* wups, kbdAddEvent isn't null by default, so I guess track things externally */ +/* wups, kbdAddEvent isn't null by default, so I guess track associations externally */ struct rfb_instance_ { rfbScreenInfoPtr screen; struct dcpu16_hw *attached_display; @@ -163,6 +210,10 @@ static struct rfb_instance_ *rfbScreen_next_available_display_(struct dynamic_array *rfbScreens, int argc, char *argv[]) { size_t i; struct rfb_instance_ new_instance, *s; + struct packed_args_ { + int argc; + char **argv; + } parg = { argc, argv }; fprintf(stderr, "DEBUG: rfbScreens->entries:%zu\n", rfbScreens->entries); @@ -172,7 +223,14 @@ struct rfb_instance_ *rfbScreen_next_available_display_(struct dynamic_array *rf return s; } - new_instance.screen = lem1802_rfb_new(argc, argv); + if (dcpu16_hw_module_lem1802.ctl(NULL, "new_rfbScreen", &parg, &new_instance.screen)) { + fprintf(stderr, "failed to allocate new rfbScreen"); + return NULL; + } + + new_instance.screen->port += rfbScreens->entries; + new_instance.screen->ipv6port += rfbScreens->entries; + new_instance.attached_display = NULL; new_instance.attached_keyboard = NULL; s = dynarray_add(rfbScreens, &new_instance); @@ -184,6 +242,10 @@ static struct rfb_instance_ *rfbScreen_next_available_keyboard_(struct dynamic_array *rfbScreens, int argc, char *argv[]) { size_t i; struct rfb_instance_ new_instance, *s; + struct packed_args_ { + int argc; + char **argv; + } parg = { argc, argv }; for (i = 0; i < rfbScreens->entries; i++) { s = (struct rfb_instance_ *)DYNARRAY_ITEM(*rfbScreens, i); @@ -191,7 +253,11 @@ struct rfb_instance_ *rfbScreen_next_available_keyboard_(struct dynamic_array *r return s; } - new_instance.screen = lem1802_rfb_new(argc, argv); + if (dcpu16_hw_module_lem1802.ctl(NULL, "new_rfbScreen", &parg, &new_instance.screen)) { + fprintf(stderr, "failed to allocate new rfbScreen"); + return NULL; + } + new_instance.attached_display = NULL; new_instance.attached_keyboard = NULL; s = dynarray_add(rfbScreens, &new_instance); @@ -308,7 +374,7 @@ COMMAND_IMPL(dump) { return 0; } - dcpu16_dump_ram(vm, addr[0], addr[1]); + dump_ram_(vm, addr[0], addr[1]); return 0; } @@ -380,7 +446,7 @@ COMMAND_IMPL(step) { dcpu16_step(vm); if (count > 1 && opt_.verbose) - dcpu16_state_print(vm); + state_print_(vm); } return 0; @@ -433,20 +499,21 @@ COMMAND_HELP(set) { fprintf(f, "Sets addr to value."); } -#define MICROSECONDS_PER_CYCLE 10 +#define NANOSECONDS_PER_CYCLE 10000 +#define MIN_NANOSLEEP 31000 COMMAND_IMPL(run) { struct sigaction act; - struct timeval run_start_tv, run_stop_tv; - long long run_cycle_start; - struct timeval start_tv, now_tv, diff_tv; + long long run_cycle_start, run_cycle_end; long long cycle_start, cycles_to_wait; - struct timespec sleep_time, rem_time; - long long run_usec; + + struct timespec ts_run_start, ts_run_end, ts_run_diff; + struct timespec ts_cycle_start, ts_cycle_end_target, ts_cycle_end, ts_cycle_waste, ts_cycle_rem; + const struct timespec ts_cycle_time = { .tv_sec = 0, .tv_nsec = NANOSECONDS_PER_CYCLE }; (void)arg_count, (void)arg_vector; running_ = 1; - gettimeofday(&run_start_tv, NULL); + gettimespecofday(&ts_run_start); run_cycle_start = vm->cycle_; memset(&act, 0, sizeof act); @@ -459,12 +526,14 @@ COMMAND_IMPL(run) { } while (running_) { - gettimeofday(&start_tv, NULL); + gettimespecofday(&ts_cycle_start); + ts_cycle_end_target = ts_cycle_start; + cycle_start = vm->cycle_; dcpu16_step(vm); if (opt_.verbose > 1) - dcpu16_state_print(vm); + state_print_(vm); else if (opt_.verbose) { dcpu16_disassemble_print(vm, vm->reg[DCPU16_REG_PC]); printf("\n"); @@ -473,37 +542,44 @@ COMMAND_IMPL(run) { /* how many cycles did this instr use? */ cycles_to_wait = vm->cycle_ - cycle_start; - if (cycles_to_wait == 0) - continue; - - /* each cycle wants 10 microseconds */ + /* each cycle wants to take 10 microseconds */ + while (cycles_to_wait--) + timespec_add(&ts_cycle_end_target, &ts_cycle_time); /* how much of that did we spend already */ - gettimeofday(&now_tv, NULL); - timeval_subtract(&diff_tv, &now_tv, &start_tv); - /* do we have time to kill? */ - if (cycles_to_wait * MICROSECONDS_PER_CYCLE > diff_tv.tv_usec) { - sleep_time.tv_sec = diff_tv.tv_sec; - /* this is not accurate.. */ - sleep_time.tv_nsec = 250 * ( (cycles_to_wait * MICROSECONDS_PER_CYCLE) - diff_tv.tv_usec); + gettimespecofday(&ts_cycle_end); + /* do we have time to kill? */ + if (timespec_subtract(&ts_cycle_waste, &ts_cycle_end_target, &ts_cycle_end) == 0) { /* nanosleep doesn't interfere with libvncserver, unlike usleep */ - while ( nanosleep(&sleep_time, &rem_time) ) { - sleep_time = rem_time; - fprintf(stderr, "rem:%ld %ld\n", rem_time.tv_sec, rem_time.tv_nsec); - } + if (ts_cycle_waste.tv_sec == 0 && ts_cycle_waste.tv_nsec >= MIN_NANOSLEEP) + while ( nanosleep(&ts_cycle_waste, &ts_cycle_rem) ) + ts_cycle_waste = ts_cycle_rem; + } else { + /* negative, we've already blown our time */ +#if 0 + fprintf(stderr, "cycle time overrun %ld.%09lds\n", ts_cycle_waste.tv_sec, ts_cycle_waste.tv_nsec); +#endif } + +#if 0 + /* how did we do */ + gettimespecofday(&ts_cycle_end); + timespec_subtract(&ts_cycle_rem, &ts_cycle_end_target, &ts_cycle_end); + fprintf(stderr, "projected end: %ld.%09ld actual end: %ld.%09ld diff: %ld.%09ld\n", + ts_cycle_end_target.tv_sec, ts_cycle_end_target.tv_nsec, + ts_cycle_end.tv_sec, ts_cycle_end.tv_nsec, + ts_cycle_rem.tv_sec, ts_cycle_rem.tv_nsec); +#endif + } - gettimeofday(&run_stop_tv, NULL); - timeval_subtract(&diff_tv, &run_stop_tv, &run_start_tv); - run_usec = diff_tv.tv_sec * 1000000; - run_usec += diff_tv.tv_usec; - fprintf(stderr, "ran %llu cycles in %lds %dus (%lldus)\n", - vm->cycle_ - run_cycle_start, - diff_tv.tv_sec, - diff_tv.tv_usec, - run_usec); + run_cycle_end = vm->cycle_; + gettimespecofday(&ts_run_end); + timespec_subtract(&ts_run_diff, &ts_run_end, &ts_run_start); + fprintf(stderr, "ran %lld cycles in %ld.%09lds\n", + run_cycle_end - run_cycle_start, + ts_run_diff.tv_sec, ts_run_diff.tv_nsec); printf("interrupted...\n"); @@ -564,18 +640,19 @@ COMMAND_IMPL(display) { return 0; } - lem1802_vnc_associate(hw, s->screen); + if (dcpu16_hw_ctl(hw, "associate_rfbScreen", s->screen, NULL)) { + fprintf(stderr, "failed to configure display/vnc"); + dcpu16_hw_del(&hw); + return 0; + } s->attached_display = hw; rfbScreen_start(s->screen); renderer_data = s->screen; } #endif /* HAVE_LIBVNCSERVER */ - if (lem1802_renderer_set(hw, renderer, renderer_data)) { - fprintf(stderr, "failed to set back-end renderer for display\n"); - dcpu16_hw_del(&hw); - return 0; - } + dcpu16_hw_ctl(hw, "renderer", (char *)renderer, NULL); + dcpu16_hw_ctl(hw, "renderer_data", renderer_data, NULL); if (dcpu16_hw_attach(vm, hw)) { fprintf(stderr, "failed to attach new display\n"); @@ -586,7 +663,10 @@ COMMAND_IMPL(display) { return 0; } COMMAND_HELP(display) { - char *name, *args; + struct renderer_ { + char *name; + char *args; + } renderer; void *iter; fprintf(f, "\tdisplay renderer [renderer data]\n"); @@ -596,10 +676,18 @@ COMMAND_HELP(display) { ); fprintf(f, "Supported renderers:\n"); + iter = NULL; - while ( (lem1802_renderers_iter(&iter, &name, &args)) ) { - fprintf(f, "\t%s %s\n", name, args); - } + do { + if (dcpu16_hw_module_lem1802.ctl(NULL, "renderers_iter", &iter, &renderer)) { + fprintf(stderr, "error fetching next renderer\n"); + break; + } + if (iter == NULL || renderer.name == NULL) + break; + + fprintf(f, "\t%s %s\n", renderer.name, renderer.args); + } while (iter); } COMMAND_IMPL(keyboard) { @@ -624,7 +712,11 @@ COMMAND_IMPL(keyboard) { dcpu16_hw_del(&hw); return 0; } - keyboard_vnc_associate(hw, s->screen); + if (dcpu16_hw_ctl(hw, "associate_rfbScreen", s->screen, NULL)) { + fprintf(stderr, "failed to configure keyboard/vnc\n"); + dcpu16_hw_del(&hw); + return 0; + } s->attached_keyboard = hw; if (dcpu16_hw_attach(vm, hw)) { @@ -750,13 +842,13 @@ int main(int argc, char **argv) { tok_v = tok_v_prev = NULL, tok_c = tok_c_prev= 0, snprintf(prompt, sizeof prompt, prompt_fmt, vm->reg[DCPU16_REG_PC]), - dcpu16_state_print(vm); + state_print_(vm); (line = readline(prompt)); printf("\n"), snprintf(prompt, sizeof prompt, prompt_fmt, vm->reg[DCPU16_REG_PC]), - dcpu16_state_print(vm)) { + state_print_(vm)) { const char whitespace[] = " \t"; char *line_start; struct command_ *c;